10 material differences · fewer than 12
Tractor oneIMR-RAKOVICA R-471984–1994No measured PTO figureTractor twoUTB U 4451974–1981No measured PTO figure
Which should you choose?
We will not advise between these two machines, because they were not built in overlapping years (1984–1994; 1974–1981). The figures below are side by side so you can judge them yourself; each says whether it was measured, claimed or declared by its source.
Field by field
10 material differences · 5 fields identical or within 5%, which is not counted as material
| Field | R-47 | U 445 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 45.3 hp | 42.4 hp | +7% R-47 |
| Engine declared | IMR-PERKINS DM-33/T | UTB D-115 | differs |
| Displacement declared | 2.50 L | 2.34 L | +7% R-47 |
| Maximum torque declared | 107 lb·ft · 145 N·m | 103 lb·ft · 140 N·m | — |
| Transmission | |||
| Top speed declared | 15.5 mph · 25 km/h | 15.5 mph · 25 km/h | — |
| Clutch declared | Pedal-operated, two-stage dry KRON-NOVI double clutch | Pedal-operated two-stage dry double clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 6.9 gpm · 26.0 L/min | 5.8 gpm · 21.8 L/min | +19% R-47 |
| Three-point lift, at the coupling points declared | 3,058 lb · 1,387 kg | 3,197 lb · 1,450 kg | — |
| Rear PTO speeds declared | 540 rpm | 540 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 4,597 lb · 2,085 kg | 4,057 lb · 1,840 kg | +13% R-47 |
| Wheelbase declared | 77.4 in · 1,965 mm | 75.6 in · 1,920 mm | — |
| Length declared | 137.8 in · 3,500 mm | 115.0 in · 2,920 mm | +20% R-47 |
| Width declared | 74.0–91.7 in · 1,880–2,330 mm | 59.6–87.2 in · 1,515–2,215 mm | differs |
| Ground clearance declared | 16.3 in · 415 mm | 18.3 in · 465 mm | +12% U 445 |
| Turning radius, braked declared | 10.4 ft · 3.18 m | 9.9 ft · 3.02 m | +5% R-47 |
| Fuel tank declared | 63.4 qt · 60.0 L | 57.1 qt · 54.0 L | +11% R-47 |
Height is not in this table. It is not one measurement: the sources measure it to different points — over the cab on some machines, over the steering wheel or the exhaust on others — and the same tractor measured two ways can differ by most of a metre. It appears here only when both machines' figures carry the point they were measured to and it is the same point, which is not the case for these two. Each machine's own page prints its height as its source gives it.
IMR-RAKOVICA R-47 sources
- Source: Traktorenlexikon, “Rakovica R 47”
UTB U 445 sources
- Source: Traktorenlexikon, “UTB U 445”